almost a year to the day president obama warning syria about crossing a red line. >> we have communicated in no uncertain terms with every player ithe region that that's a ready line for us. >> reporter: two months ago when the white house said it was convinced assad had carried out a small care chemical attack, the red line seemed to blur. little was done in response. what is not debatable is the human toll. i want to show you some images. thousands of families streaming out of syria, escaping the bloodshed. among them, a child, diane, who will become the one millionth young syrian to flee. a sad milestone. >> it is. those are amazing pictures, martha and thank you tonight. by the way, as martha knows, 10,000 syrians flee every single day. >>> back here at home today we learned what the punishment will be for an historic breach of national secrets. bradley manning, the army private who leaked hundreds of thousands of documents to wikileaks was sentenced to 35 years in prison today. he reportedly appeared cheerful and told his lawyers, this is just a stage in my life. i will recover. his